Vega D81 METEC Hydrostatic pressure transmitter Bedienungsanleitung PDF herunterladen (Seite 4)

4 Pressure transmitter D81 METEC

®

Product description

1 Product description

1.1 Function and configuration

Pressure transmitter D81 METEC

®

is a pow-

erful instrument for hydrostatic level meas-

urement. A METEC

®

measuring cell is used

as the measuring device. This cell consists of

a ceramic-capacitive sensor and a specially

adapted isolating diaphragm.

Pressure transmitter D81 METEC

®

Measuring cell: METEC

®

Diaphragm: flush, Hastelloy C276/1.4435

Series: flange version

Standard application: all types of level meas-

urements, best suited for food processing

and pharmaceutical industries.

The hydrostatic pressure of the product

causes a diaphragm movement in the ce-

ramic-capacitive CERTEC

®

measuring cell via

a temperature-compensated isolating system

consisting of stainless steel body, Hastelloy

diaphragm and medical white oil. This ca-

pacitance change is detected by an ASIC

(Application Specific Integrated Circuit) and

converted into a pressure-proportional signal

by the integrated electronics module with

microcontroller. Precise, high-resolution dig-

ital processing of measurement data ensures

excellent technical data.

To improve reliability, the functionality of im-

portant electronic components is continu-

ously checked, and internal parameters such

as sensor value, temperature and operating

voltage are closely monitored.

Output signal

The output signal is transferred as a digital or

analogue signal from the pressure transmitter

to the signal conditioning instrument:

• analogue output signal

- unstandardised (in conjunction with

VEGA signal conditioning instrument)

- 4 … 20 mA standardised

• digital output signal (VBUS) for connection

of a digital VEGA signal conditioning instru-

ment (VEGAMET 514V, 515V or VEGALOG

571)

CERTEC

®

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